1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/ui/consts/const-len-underflow-separate-spans.rs b/src/test/ui/consts/const-len-underflow-separate-spans.rs
new file mode 100644
index 000000000..7c3d1f320
--- /dev/null
+++ b/src/test/ui/consts/const-len-underflow-separate-spans.rs
@@ -0,0 +1,14 @@
+// Check that a constant-evaluation underflow highlights the correct
+// spot (where the underflow occurred), while also providing the
+// overall context for what caused the evaluation.
+
+const ONE: usize = 1;
+const TWO: usize = 2;
+const LEN: usize = ONE - TWO;
+//~^ ERROR any use of this value will cause an error
+//~| WARN this was previously accepted by the compiler but is being phased out
+
+fn main() {
+    let a: [i8; LEN] = unimplemented!();
+//~^ ERROR E0080
+}